Document Detail


In situ gelation of supramolecular hydrogel for anti-tumor drug delivery.
MedLine Citation:
PMID:  19911347     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
A supramolecular injectable hydrogel was fabricated. The hydrogel was in situ gelated by the host-guest interaction between alpha-cyclodextrins (alpha-CDs) and methylated poly(ethylene glycol) grafted poly(alpha,beta-malic acid) (mPEG-g-PMA). The hydrogel was characterized by (1)NMR, XRD, DSC, TGA and SEM. The results showed that the polyrotaxanes of alpha-CDs/mPEG-g-PMA acted as physical crosslink sites in the hydrogel. Anti-tumor drug doxorubicin hydrochloride (DOX) was loaded in the hydrogel. The release and anti-tumor effect were studied in vitro. The burst release of DOX was restrained obviously. The sustaining release time lasted more than 3 d and the cell viability decreased greatly. This hydrogel is a promising injectable hydrogel for minimally invasive therapeutic drug delivery.
Authors:
Bin He; Jing Zeng; Yu Nie; Li Ji; Rui Wang; Yuan Li; Yao Wu; Li Li; Gang Wang; Xianglin Luo; Zhirong Zhang; Zhongwei Gu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Macromolecular bioscience     Volume:  9     ISSN:  1616-5195     ISO Abbreviation:  Macromol Biosci     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-12-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101135941     Medline TA:  Macromol Biosci     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1169-75     Citation Subset:  IM    
Affiliation:
National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China. bhe@scu.edu.cn
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